Base houseplant blend:
Makes 25 Gallons, perfect to mix and store in a 45gal. storage tote. “Parts” are noted so one can adjust volume as needed but make sure to adjust the amount of soil amendments also.
2 parts or 5 gal 50/50 Canadian sphagnum peat moss
& coco coir
2 parts or 5gal perlite or pumice
2 parts or 5 gal quality compost or castings
2 parts of 5gal chunky coir
1 part 2.5 gal bark
1 part 2.5 gal biochar
1 cup rock dust
1 cup kelp / alfalfa
1 cup neem/Karanja
Anthuriums: Extra aeration! 2 or 3 parts Base Houseplant Blend to 1 part Chunky Coir and/or Orchid Bark. I do 50/50 bark and choir.
Hoya, Succulents, Cacti: 4 parts Base Houseplant Blend and 1 part Pumice or Lava Rock. Perlite in a pinch but I much prefer actual rock for these plants, their roots love it.